Yes, I think Teens react to Homestuck would be a great idea... however, I think having them react to the [S] Cascade flash would be more helpful overall as it would give them something to actually watch, additionally that flash animation was famous because when it first came out it actually crashed Newgrounds, which hosts it.

@XforYasmin homestuck is an online comic and hetalia Is an anime with all the countries rolled into the perfect stereotypes of the country they represent and it basically a huge history lesson except more random and funny